The invention relates to a method and to a device for supplying gas, wherein a gas mixture is evaporated from a gas supply agent and cryogenic fluid, in that the mixture under pressure in a supply tank is fed through a pressure-reducing valve, so that the mixture is completely evaporated and the vapor is fed to a good for supplying gas. According to a first aspect of the present invention, the mixture is temperature-controlled in the storage tank such that it forms a supercritical fluid. Distillation of the gas supplying agent is thereby prevented. According to a second aspect of the present invention, the evaporated mixture is atomized by adding compressed air, and the ratio between the mixture and the compressed air is adjusted by means of interchangeable vanes and/or adjustable pressure-reducing valves. The ratio between the mixture and the compressed air can thereby be freely varied.
